Container bottom



FIG. 1 is a view from the side of a container bottom showing my new design, with the broken line showing, for illustrative purposes only, the remainder of a container with which my new container bottom design may be used and forming no part of the claimed design;

FIG. 2 is a view from below the container bottom of FIG. 1 showing my new design; and,

FIG. 3 is a perspective view from below of the container bottom of FIGS. 1 and 2 showing my new design, with the broken line showing, for illustrative purposes only, the remainder of a container with which my new container design may be used and forming no part of my claimed design. 

The ornamental design for a container bottom, as shown and described. 